65787077992 has 16 divisors (see below), whose sum is σ = 123636974400. Its totient is φ = 32817218160.

The previous prime is 65787077929. The next prime is 65787078001. The reversal of 65787077992 is 29977078756.

It is a happy number.

65787077992 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9536442 + ... + 9543337.

It is an arithmetic number, because the mean of its divisors is an integer number (7727310900).

Almost surely, 2^65787077992 is an apocalyptic number.

It is an amenable number.

65787077992 is a deficient number, since it is larger than the sum of its proper divisors (57849896408).

65787077992 is a wasteful number, since it uses less digits than its factorization.

65787077992 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19080216 (or 19080212 counting only the distinct ones).

The product of its (nonzero) digits is 93350880, while the sum is 67.

The spelling of 65787077992 in words is "sixty-five billion, seven hundred eighty-seven million, seventy-seven thousand, nine hundred ninety-two".